Dumping-floor.



hereinafter pointed out.

end to provide attaching-ears JOHN F. DORNFELD, OF CHICAGO, ILLINOIS.

DUNIFING-FLOOR.

Specification of Letters Patent.

Patented April 16, 1907.

Application tiled February 17, 1905. Serial No. 246.115-

To r/tZ LiL/w77?, t ntrtj/ concern,.-

Be it known that l', JoiIN F. DonNFELD, a 1 citizen of the United States, residing at Chicago, in the county of (look and State of Illinois, have invented certain new and useful Improvements in Dumping-Floors, of which j tho following is a specification. This invention refers to dumping-Heers l for use in `lnalt-kili'is and other places where l it is desirable quickly to clear a Hoor of any granular. substance thereon, and relates to th'e various improvements in such a :Hoor

l l .ln the accompanying drawings, Figure 1 is j a fragmental sectional view through a dumpli ing-Hoor embodying the features of this invention. Fig. 2 is a sectional view through said floor, taken ondotted line 2 2 of Fig. 1. Fig. 3 is a fragmental sectional view through one of the Hoor-sections. Fig. 4 is a detail view of the means for supporting one of the end sections of the floor.

This improved dumping-'licor is made up j of a number of sections extending from side to side of the room and of identical construcj tion, except in the case of the two end sec qtlons, which end sections, as will hereinafter appear, differ slightly from the intermediate sections and from each other. The intermediate floor-sections 1 comprise end pieces 2, cross-pieces 3 and 4, longitudinal side pieces 5, Hoor-brackets 6, extending parallel with the cross-pieces 3 and 4, and a perforated floor-plate 7, all rigidly secured together. The hoor-brackets 6 are each formed of a strip of band-steel twisted and bent at each 8, adapted to side pieces 5 and Hat horizonwhich the floor-plate 7 is rivy this construcl the necessity of be riveted to the tal portions 9, to eted, as shown in Fig. 4..

tion of floor-brace l obviate providing special means for attaching the oor-plate 7 to the framework of the section. The pieces 2, 3, and 4 are provided with hubs 10, through which passes a square shaft 11, said shaft extending from one side of the room to the other and projecting through one wall of said room into position to be engaged f by a wrench or similar device for rotating it. The shaft 1 1 extends somewhat to one side of the .center of gravity of the section. A plate 12, setinto the wall at each side of the room, provides a bearing for the hub 10 of the adjacent end piece 2, and'between its ends the floor-section is supported at suitable interj vals in its length upon. standards 13, suitably mounted upon girders 14, extending transversely beneath. the sections of the floor. Each of said standards 13 is provided at its upper end upon one side with a semicylindrical bearing 15 for supporting the hub 10 of one of the cross-pieces 4. Upon the other side of the standard 13 is formed a seat 16, upon which a locking-arm 17 is adapted to rest. Each of the pieces 2 and 4 is provided with such a locking-arm 17, said arm being pivotally mounted upon a stud 18 on said piece. lFrom the bearing-plate 12 at each side of the room projects a stud 19, adapted to support the locking-arm 17 ofthe adjacent en piece 2. When the intermediate floorsections 1 are in their normal horizontal po' sition, the locking-arms 17 project far enough of their respective sections to underlie and support the near side of the adjacent section. t will thus be seen that the tilting of one of the sections 1 successively withdraws the supports for all the sections to one side of the hist-mentioned sectionhautomatically bringing about a tiltingA of said sections.

The section 1aL stead of being pivotally mounted at a point between its sides is pivotally mounted at one side by means of perforated ears 20,1ixed to the framework of the section and rotatably supported upon sleeves 20a, surrounding a shaft 21, extending from side to room. i girders 14 is he beneath and support the swinging side of the end section 1a and the nearside of the adjacent intermediate section l. A connecting-rod 24 pivotally connects each of said cam-levers with a crank-arm 25, iixed upon the shaft 21. One end of the shaft 21 extends through the wall of the room into position to be engaged by a wrench for turning it. The floor-section at the opposite side of the room is substantially like the intermediate sections 1, the locking-arm 17, however, being omitted.

The floor-plates 7 at their side edges extend beyond the side pieces 5, forming side iianges upon each side of each section, one of whic flanges may be depressed or bent in rabbet form to underlie the iiange of the next adjacent section, forming a supporting seat or earing for said adjacent section, and thereby at one end of the iioor in- IOC lIO

keeping the uppersurface of all of the plates in a plane for convenience in sweeping or passing over the floor.

When it is desired to dump the `Hoor, the shaft 21 is rotated .by means of a wrench or in any other convenient manner to withdraw the cam-levers 22 from beneath the section 1d and the adjacent section 1, permitting said section 1d to tilt downward upon its shaft 21' and said section 1 to tilt upon its shaft 11. The tilting of the section 1 Withdrew the locking-arms 17 from beneath the next succeeding section 1J permitting said latter section also to tilt by gravity, and so on throughout the series of llooresections. The

sections are restored to a horizontal position one at a time in reverse order by rotating the shafts 1 1 from one end of said shafts until the end section 1a is reached. The latter section is raised by rotating the shaft 21 to move the cam-levers 22 upwardly upon their pivots7 said levers in their movement lifting the section into a horizontal position. The movement of the levers 22 is continued until the rollers 23 of said levers underlie the adj acent sides of said section 1fL and the adjacent intermediate section 1.

The embodiment herein shown of this invention is susceptible of various modifica tions without departing from the spirit and scope of the invention, wherefore I desire to have it understood that I do not limit myself to the precise details herein set forth.

I claim as my invention- 1. A dumping-Hoor comprising a series of pivoted sections, each of said sections having pivotally connected thereto a locking-arm arranged to move with its section and adapted, when the section is'in a horizontal position, to support the next adj acent section and means for supporting the free end of said arm.

2. A dumping-fiom' comprising two pivotally-mounted sections, a pivoted locking-arml on one section adapted to underlie and support the other section when both are horizontal, and means for supporting the free end of said locking-arm.

3. A dumping-licor comprising a movablymounted section, a stationary member, and means for moving said section comprising a earn-lever pivotally mounted on said sta tionary member and adapted to bear against said section, and means for pivotally moving said lever.

4. A dumping-floor comprising two pivot# ally-mounted sections7 and means for supporting said sections comprising a pivoted lever adapted to underlie said sections.

5. A dumping-Hoor comprising two pivotally-mounted sections, and means for supporting said sections comprising a pivoted lever provided at its free end with a roller adapted to underlie said sections.

6. In a dumping-floor, in combination, a floor-section; means for pivotally supporting said floor-section comprising a standard; means for supporting the unbalanced weight of said section; an arm pivoted to said sec* tion adapted to support the unbalanced weight of an adjacent section; and means on said standard for supporting the free end of said arm.

7 In a dumping-Hoor, in combination, a Hoor-section; a shaft iiXed thereto and located somewhat at one side of the longitudinalv center of said section; means for rotatably supporting said shaft comprising a standard; means for supporting the unbalanced Weight of said section a locking-arm pivoted to said section and adapted to support the unbalanced weight of an adjacent section 3 and a seat on said standard adapted to support the free end ofsaid arm.

JOHN F. DORNFELI). Witnesses:

L. L.l Mr LLnn, GEORGE L. CHINDAHL. 

